@book { RisikomanagementinSupplyChainNetzwerken,
    title = "Risikomanagement in Supply Chain Netzwerken",
    author = "Josef {Asanger} and Hannes {Freinberger}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832477509",
    url = "https://m.diplom.de/document/222991"
}